Clutch-actuating mechanism.



P. DAIMLER.

QLUTGH AOTUATING MEGHANISM.' urmoumx FILED BEPT.16,'1911.

Patented $9111.24, 1912.

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(in/0614252 1 fud azkn 1? P. DAIMLER. CLUTCH AGTUATING MECHANISM. APPLICATION FILED SEPT.16, 1911.

Pateptd' Sept. 24, 1912.

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' mlja/mzlw jiiaivf/ STATES PATENT canton- PAUL DAIMLER, or UNTERTI'FRKHEIM, s'ror'rean'r, GERMANY, assrenon {'lQDAIMLE-R MOTORENGESELLSCHAFT. or nnrnn'rnnnnnm, NEAR s'rn'r'reanr, GERMANY.

CLUTCH-ACTUATING MECHANISM.

Specification of Lettersrate'nt.

Application filed September 16, 1911. Serial No. 649,763.

Kingdom of Wurttemberg, German Empire,

have invented a new and Improved Clutch- Actuating Mechanism, of Which the following is a specification.

This invention relates to clutch actuating mechanism chiefly intended for the clutches of automobiles, of'the type in which two.

cones slidably movable in opposite directions on one shaft to be coupled, under the action of a spring, are adapted to engage frictionsurfa-ces carried by the other shaft to be coupled, and in which the cones are provided with concentrically and laterally projecting hubs, extending beyond the casing of the clutch, and which are engaged by the disei'igaging device in known manner.

According to the present invention the disengaging gear is so constructed that it consists of simple and rigidly mounted parts and therefore works very reliably. "A ring or other suitably shaped part is secured against rotation upon each of the concentric hubs of the cones and these rings or the like are engaged by means of wedgeswhich are supported and guided by pivoted arms or the like. The wedges or the pivoted arms are connected with the disengaging lever so that on operating the latterthe wedges are forced between the rings on the concentric hubs so that under the wedging action, the slidable cones are moved against the action of the spring so as to disengage from the friction surfaces.

In order to obtain an elhciently operating device, the engagin surfaces of the wedges are curved in the p ane of oscillation of the pivoted arms, that is to say in the longitudinal direction of. the wedgesfand these curved surfaces are adapted to bear against rollers carried by the rings on the concentric hubs.

In order'that the invention may be'more clearly understood, reference is made to the accompanying drawings, which show by Way of example one method of carrying out my invention, so much of the friction clutch being shown as is necessary for the invention to be clearly undemtood.

Patented stile 24, 19 1 2 Figure 1 is a side viewbfthedisengaging gear, Fig. 2 is a plan ofsame; pa'rtly'insec I tion. Fig. 3 is a vertical section.through'the clutch and its actuating mechanism.

a indicates the casing of the clutch whose interior surface constitutes a double frustoconical friction surface. l, I

e e are frusto-con1cal friction; members cooperating with the interiorf'surface ofthe 2' casuig a and having laterallyv projecting-'2 hubs e 6 respectively 'arrangedw concent-rically the one within the ot-zherr, Secured v on the outer end of the inner Ehub' e? is a ballring 0 and loosely mounted on thehub c5, and bearing againstthe .ghubet' is another ball ring 6 these ball ringsb c cooperating;

with loose rings 5 and 0 respectively. and

balls 12 to form ball bearings, the loose rings secured against rotation-by" means of pro ections b'* and 0* on rings 5 and- 0 respectively, the projection c engaging in a recess;

11 in the hub i of a crankiihereinafter re: ferred to, while the projection:btisengaged by any fixed part.

I The-rings .b and (2 are} provided with pins Z) and'o respectively, on- .which are rotatably mountedftherollers J)?- respectively. Between 'eachj pair of rollers b engages a wedge (Z whichis carried by an arm f pivoted at g to thc'change speed gearcasing g or to any other .convenient and. stationary part of the vehicleframe. Pivotally connected to the wedgesrl; are connecting rods in articulated to cranksc' onthe shaft Zc of the disengaging ;-;lever. 472;,- project-ing through the foot-board {l of the vehicle. As shown in Fig-f1 ofthe drawings,

the engagingsurfaces ofthewedgesrlpare curved in the longitudinal lirection, umais to say, in the plane of oscillation of the levers f, in order that the wedges mayevenly operate on the rollers We? inspite oftheir arcuate movement about Jthe ,pivots. g,

The wedges d are also ;preferablygrooved, as shown in Fig. 2, in order, to insure the engagement thereof with the rollers. b

On depressing the disengaging leverl' ml,"

the wedges dare forced between the, rollers b 0 through the mediumof the cranksi a nd connecting rods h. The pivotedarms 7 control the movement of thejwedges so thatthe latter cannot move either in the direction of the axis of the shafts to be coupledor at right anglesthereto. this means a uniform. wedgingetfect on the rollers 15 is insured. On tint-wedges (Z being forced between the rollers Z) 0 lhe ri'ngs b carrying the'rollers are forced a. through the balls n, rings Z) and c c and c the cones are disengaged from the friction surfaces. A spring r is arranged in known manner between the cones e c of the clutch in order to return the friction cones to coupling position on the release of the disengaging lever on.

1. In combination with a double cone friction clutch having two cones slidably movable in opposite directions on one shaft to be coupled under the action of a spring, friction surfaces carried by the other shaft to be coupled and concentrically and laterally projecting hubs on said cones; an abutmenton each of said hubs, a wedge between said abutments, a pivoted arm carrying said wedge, a disengaging lever and a connec tion between said lever and said wedge,

whereby on'actuating said lever, said abut- 'ments are forced apartto disengage said cones from the friction surfaces.

2. In combination with a double cone friction clutch having two cones slidabl movable in opposite directions on one shaft to be coupled under the action of'a spring, friction'surfaces carried by the other shaft to be coupled and concentrically and laterally projecting hubs on said cones; an abutment on each of said hubs, a pluralityv of wedges between said abutments, pivoted. arms carrying said wedges, disengaging lever and connections between said lever and wedges whereby, on actuating said lever, said abutments are forced apart to disengage said cones from the friction. surfaces.

3, In combination with a double cone friction clutch having two cones slidably movable in opposite directions on one shaft to be coupled under the action of a spring, friction surfaces carried by the other shaft to be coupled and concentrically and laterally projecting hubson said cones; an abutment on each of said hubs, a wedge between said abutments, and having its engaging edges curved in the longitudinal direction of the wedge, a pivoted arm carrying said Wedge, a disengaging lever and a connection be tween said lever and wedge whereby, on'actuating' said l er, said abut-ments are forced "1 gapart to disengage said cones from the friction surfaces.

4-. In combination with a double cone frictio itch having two cones slidably movsable opposite directions on one shaft to ,becoupledunder the action of a spring, frictionsurf aces carried by the other shaft to 'bef coupled and concentrically and laterally projectinghubscn said cones; an abutment nuances on each of said hubs, a plurality of wedges between sa1d-abut1nents and having their engaging edges curved in the longitiulinaldi rection of the wedges, pivoted arms carrying .said wedges, a disengaging lever and-comb,

nectious between said lever and wedges,

whereby, on actuating saidx lever, said abutments are forced apart to.-1;dise11gage said cones from the friction surfaces.

I 5. In combination with a double cone friction clutch having two cones slidably movable in opposite directions on one s raftto be coupled under the action of a spring, friction surfaces carried by the other shaft to be coupled and concentrically and laterally projecting hubs on said cones; an abutment on each of said hubs, a roller on each of said abutments, a wedge between said rollers, a pivoted. arm carrying said Wedge, a disengaging lever and a connection between said lever and said wedge whereby, on actuating said lever, said rollers and abutments are forced apart to disengage said cones from the friction surfaces.

('3. In combination with a double cone frie tion clutch having two cones slidably movable in opposite directions on one shaft to be coupled under the action of a spring, friction surfaces carried by the other shaft to be projecting hubs on said cones; an abutment on each of said hubs, a pair of rollers 011- opposite sides of each of said abutments, a pair of wedges between eaclrcorresponding pair of rollers, pivoted arms carrying said wedges, a disengaging lever and connections between said lever and said wedges whereby, on actuating said lever, said. rollers and abutments are forced apart to disengage said cones from the friction surfaces.

v 7. In combination with a double cone fric-. tion clutch having two cones slidably movable in opposite directions on one shaft to be coupled under the action of a spring, friction surfaces carried by the other shaft to be coupled and concentrically and laterally projecting hubs on said cones; an abutment on each of said hubs, a roller on each of said abutments, a wedge between said rollers and having its engaging edges curved in the longitudinal direction of the wedge. a pivoted arm carrying said wedge, a. disengaging lever and a connection between said lever and said wedge whereby, on actuating said lever, said rollers and abutments are forced apart to disengage said cones from the friction surfaces.

8. In combination with a double cone fries tion clutch having two cones slidably mov able in opposite directions on one shaft to be coupled under the act1on of a spring, friction surfaces carried by the other shaft to "the Wedges; pivoted arms carrying said wseees each 0f said hubs, a pair of rollers on, avbutments are forced apart to disengage 10 oppeslte sldes of each 0f sald abutments, a szud cenes from the frlct-lon surfaces. panof wedges betvveen each corresponding In wlt-ness whereof I have hereunto set pear of rollers, and havmg then engagmg my hand 1n the presence of two wltnesses.

e es cun ed 11 th long t1 ch 101 bust on of PAUL DAIMLER \Vitnesses:

ROBERT UHLAND, FISDE KLAIBER.

Wedges, a disengaging lever and connections between szud lever and send Wedges whereby, 11 actuat-mg seld lever, sand rollers and 

